Sash-fastener



J. ABBOTT.

SASH FASTENER.

(No Model.)

Patented May 28, 1889.

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UNITED ST TES" PATENT OFFICE.

JOSEPH ABBOTT, OF RUMNEY, NE\V HAMPSHIRE.

SASH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 404,145, dated May 28, 1889.

Application filed March 16, 1889. Serial No. 303,508. (No model.)

To all whom it may concern:

Be it known that I, JOSEPH ABBOTT, a citizen of the United States, residing at Rumn ey, in the county of Grafton and State of New Hampshire, have invented certain new and useful Improvements in \Vindow-Sash Fasteners; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyin g drawings, and to the letters of ref erence marked thereon, which form a part of this specification.

Figure 1 is a vertical and longitudinal section, Fig. 2 a vertical and transverse section, and Fig. 3 a horizontal section, of a portion of a window-sash and its casing with my improved fastener applied thereto. Fig. 4 is a side View, and Fig. 5 a rear end view, of the outer casing, 0.. Figs. 6 and 7 are opposite side views of the inner casing, b, of the fastener. Fig. 8 is a side View, and Fig. 9 an end view, of the operative shaft D. Fig. 10 is a side view, and Fig. 11 an edge View, of the semicircular wheel pivoted within the casing b. Fig. 12 is a side view of the pivot of said wheel. Fig. 13 is a side view, and Fig. 14 an edge view, of the nut which forms one of the bearings of the shaft D. Fig 15 is a View of the key for operating the fastener. Fig. 16 is a vertical section of the fastener, showing it as applied to the side bar of the upper sash of a window and as locked to its casing. is a similar section of it as applied to the side bar of the lower sash of a window, and showing it as locked to its casing.

The nature of my invention is defined in the claims hereinafter presented.

In the drawings, A denotes the side bar of a window-sash, and B the sidebar of the win- (low-casing.

C is the sash-fastener, it being formed of two casings, a and b, the outer one, a, having a flange, c, as shown, to receive screws (1, to connect it to the sash. Said casing a is open at both ends and also in the greater part of that side of it which is toward the inner side of the sash, said side of the casing a having lips e e to retain the casing 11 within it, as shown. The casingb has pivoted within it a Fig. 17

semicircular wheel, f, the periphery of which is slightly eccentric, the points 9 g of said periphery being farther distant from the axis of said wheel than the middle of said periphery between said points. The pivot 71 of the said half-wheel is supported in bearings in the sides of the case b, and has a head, j, to enter a countersink, j, in that side of said case b which is next the closed side of the case a when said case b is in position within the said case a. After the casing a is placed within the mortise made in the sash to receive it and is secured thereto by screws, the casing b, with the half-wheel f and its pivot in place within it, are placed within the casing a. Next the eccentric-shaft D is extended into a circular opening, 2', made from the inner side of said sash and connecting with the mortise, and is passed through slots it, formed in the sides of the case b. One journal, l, of the said shaft enters a bearing, m, in the closed side of the case a and the other journal n is supported by a bearing or nut, o, screw threaded on its periphery, and is screwed into the opening '5, which, besides furnishing a bearing for the journal 42, also serves to retain said shaft in position. (See Figs. 2 and 3.) The exposed end of the shaft D is prismatic, as shown, to receive a key for turning it in its bearings. The opening 7; is provided with an escutcheon, p, as represented. By applying the key to the shaft D and turning it in the direction of the arrow in Fig. 1 the case b will slide in the case a, and the half-wheel f will be borne against the window-casing with sufficient friction to hold an unbalanced sash at any height within the range of its motion.

For securely looking a sash to the casing by means of said fastener, I apply to the said casing a series of catches, E, to operate with the half-wheel f. Fig. 16 represents a portion of the upper sash as locked in its highest or closed position. To the groove in which the upper sash slides I also apply another of the catches E, at a short distancewe will say six inches-below the catch shown in said Fig. 16, and in case it is desired to leave the said sash down at its top at any distance less than the said six inches, it is safe to leave the sash supported only by the friction of the said half-wheel f against the casing, for should any one from outside depress said sash the said wheel f will be caused by the friction of it against the casing to turn on its axls, and being eccentric will, as it turns, bear with more and more force againstthe casing, and on reaching the catch referred to will look into it in the same manner as is shown in said Fig. 16, and securely hold it from further depression, it bearing against the shaft D and catch E. The same is true of the lower sash, (see Fig. 17,) the additional catch in this case being applied to the casing at a proper distance above that shown in said figure, said distance to be less than would be, necessary to enable a person to enter the apartment from the outside. Thus it willbe seen that an apartment having the sashes of 1ts windows provided with my fastener can be left open at suitable distances at top and bottom and still be secure from intrusion. Furthermore, the fastener is simple in construction, efiicient in operation, and durable, there being no spring in it nor any holes to be tapped with screw-threads to receive screws to hold its parts together; therefore it will be inexpensive to manufacture.

Having described my invention, What I claim is l. The window-sash fastener, substantially as described, comprising the case a, having the flange c and bearing m, and adapted to receive and support the case b, the latter having bearings for the pin j and provided with slots 70, the half-wheel f, provided with eccentric periphery and pivoted within and to the case b, the shaft D, arranged in the slots in case b and supported ina bearing in case a and also in a nut, 0, in combination with the sash and its casing, the latter having catches E, constructed, arranged in the casing, and to receive one end, g, of the half-wheel to lock the sash, essentially as set forth and represented.

2. The combination of the case a, provided with the flange a, hole m, and lips e, and adapted to receive and support the case b, the said case b provided with bearingsfor the pivot j and formed with slots 10, the half-wheel f, pivoted to the case b and having eccentric periphery, and provided with bearings to rest against shaft D when either end of it is engaged with catch E, the eccentric-shaft D, one journal of which is supported in case a and the other in a bearing or nut, 0, which is adapted to retain the shaft D in position in the case a and support said shaft while moving the case b, and the said nut 0, all substantially as shown and set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JOSEPH ABBOTT.

Witnesses:

S. N. PIPER, C. F. DANIELS. 

